\begin{figure}
\includegraphics[width=\textwidth]{sequence_diagram_1.png}
\caption{Shows sequence diagram 1.}
\label{sequence1}
\end{figure}
Figure \ref{sequence1} shows the refined sequence diagram for copying and pasting segments.



\begin{figure}
\includegraphics[width=\textwidth]{sequence_diagram_2.png}
\caption{Shows sequence diagram 2.}
\label{sequence2}
\end{figure}
Figure \ref{sequence2} shows the refined sequence diagram for copying and pasting segments.
